A man goes to a dentist office to have a tooth pulled and sees the dentist is a female. When she asks why he's there, he responds with, "I need to have a tooth pulled."
Upon her exam, she finds that he does indeed have a bad molar that needs to come out.
She fills a needle with a pain killer in order to numb his gums and he tells her, "No needles, I can't stand needles and won't let you use that."
So , she grabs the laughing gas and approaches him and he says, " You can't use the gas on me, I can't stand any kind of mask on my face. I won't do it."
Frustrated, she asks, "Do you have any opposition to swallowing a couple of pills?" He says ," No, I can swallow pills just fine."
So, she hands him a couple of small, blue pills and he takes them.
After he takes them, he asks her what they were. She tells him they were Viagra!
"Wow", he says, "I had no idea that Viagra was a pain killer!
"It's not", says the dentist, "But it will give you something to hold onto while I yank that tooth out!"